Overview

Broccoli is the edible green flowering head of a cultivated variety of the cabbage family, Brassica oleracea var. italica. It has a firm stalk, dense clusters of unopened flower buds, and a mild, slightly grassy flavor that becomes sweeter when cooked. The plant is native to the Mediterranean and is now grown worldwide as a cool-season annual vegetable.

Origin and history

Broccoli was developed from wild cabbage in the Mediterranean region, likely in what is now Italy, where it has been cultivated since at least the Roman era [1]. The name comes from the Italian plural of broccolo, meaning “the flowering top of a cabbage,” a diminutive of brocco (“small nail” or “sprout”) [3]. Broccoli was introduced to England in the early 18th century and to the United States by Italian immigrants in the late 19th century, but it did not become widely popular in American home kitchens until the mid-20th century [3]. Commercial production expanded significantly after World War II, with California emerging as the dominant U.S. growing region.

Varieties and aliases

  • Calabrese broccoli: the common heading type with large green heads and thick stalks, named for the Calabria region of Italy.
  • Sprouting broccoli: produces many small heads or spears rather than a single large head; includes both purple and white varieties.
  • Broccolini: a hybrid of broccoli and Chinese broccoli (gai lan), with thinner stalks and smaller florets.
  • Romanesco broccoli: a chartreuse, fractal-patterned variety with a nuttier flavor, technically a different cultivar (Brassica oleracea var. botrytis).
  • Chinese broccoli (gai lan): Brassica oleracea var. alboglabra, a close relative with thicker stems and smaller, more bitter leaves, used extensively in Cantonese cooking.

Culinary uses

Broccoli is commonly boiled, steamed, roasted, or stir-fried. The entire head and stalk are edible, though the tough outer layer of the stalk is often peeled. It pairs well with garlic, lemon, olive oil, soy sauce, oyster sauce, cheese, and chili. In Italian cooking, broccoli is used in pasta dishes, frittatas, and as a side vegetable. In Chinese cooking, gai lan (Chinese broccoli) is blanched and served with oyster sauce or stir-fried with garlic and ginger.

Cross-cuisine context

Broccoli has no direct analogue in traditional Mexican cuisine, where the closest functional equivalents are quelites (wild greens such as huauzontle and quintonil) and nopales, which are used as vegetable sides or fillings. Huauzontle, a flowering green in the amaranth family, is sometimes battered and fried in a preparation that resembles broccoli fritters, but the flavor and texture are distinct.

Notes for cooks

  • Broccoli florets cook faster than the stalks. For even cooking, cut stalks into smaller pieces or peel and slice them thinly.
  • Overcooking produces a sulfurous odor and mushy texture. Steam or blanch for 3 to 5 minutes, or roast at high heat (425°F / 220°C) for 15 to 20 minutes.
  • Store unwashed broccoli in a perforated plastic bag in the refrigerator for up to 5 days. Yellowing florets indicate age and declining flavor.